Showing 1 - 10 of 10
This paper presents an energy management strategy to operate a hybrid power system with renewable sources (wind and solar), batteries, and polymeric electrolyte membrane fuel cells. The fuel cells are fed with hydrogen from bioethanol reforming. The energy management strategy uses the concept of...
Persistent link: https://www.econbiz.de/10011116543
This paper presents the results of an experimental analysis performed on a miniaturized, 6We Proton Exchange Membrane Fuel Cell (PEMFC) system, integrated with on-site hydrogen production by electrolysis; in particular, the effects of environmental parameters such as the external temperature and...
Persistent link: https://www.econbiz.de/10010803685
Titanium nitride (TiN) is a promising material that has a higher potential for increasing electrocatalyst durability in PEM (proton exchange membrane) fuel cells. In this report we provide an explanation for the higher catalytic performance of titanium nitride nanoparticles (TiN NP) based...
Persistent link: https://www.econbiz.de/10011055755
Carbon paper is commonly used as the gas diffusion layer (GDL) in polymer electrolyte membrane (PEM) fuel cells as it exhibits high chemical and mechanical durability. This diffusion medium is also anisotropic, which directly affects its transport properties and specifically the thermal...
Persistent link: https://www.econbiz.de/10011041436
This article deals with a PEMFC (proton exchange membrane fuel cell) electrical model based on a 1D analog representation of mass transport phenomena, and taking into account the influence of gas supply conditions on fuel cell voltage. By using an electrical analogy to describe transport of...
Persistent link: https://www.econbiz.de/10011043992
The influence of Pt: Pd atomic ratios (1:2–1:8) on a carbon support upon its suitability as a cathode for a proton exchange membrane (PEM) fuel cell was evaluated at a constant membrane electrocatalyst loading of 0.15 mg/cm2. The results clearly demonstrated that the different Pt: Pd atomic...
Persistent link: https://www.econbiz.de/10011044447
This work aimed to characterize and optimize the variables that influence membrane electrode preparation using a design of experiment (DOE) approach in two steps. First, in the process of electrode preparation, the quantity of PTFE and drying time were found to have no significant influence...
Persistent link: https://www.econbiz.de/10011045853
The transport of electrons through the gas diffusion layer (GDL) of polymer electrolyte membrane (PEM) fuel cells has a significant impact on the optimal design and operation of PEM fuel cells and is directly affected by the anisotropic nature of the carbon paper material. In this study, a...
Persistent link: https://www.econbiz.de/10010572003
A 3-dimensional model for an in-house proton exchange membrane (PEM) fuel cell with serpentine channels has been developed in order to investigate the sensitivity of the fuel cell performance to the anisotropic gas permeability and electrical conductivity of gas diffusion layers (GDLs). For a...
Persistent link: https://www.econbiz.de/10010572032
This paper deals with the control and management of a hybrid power system composed of two clean generators connected to the load via a DC-Bus. The system configuration can solve certain problems inherent to reliability and power supply quality emanating from generators renewable energy resources...
Persistent link: https://www.econbiz.de/10010573572